Finding the Fourth Proportional to 192,863.31, 289,313.99 and 66,486.93
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Solution
The fourth proportional to 192,863.31, 289,313.99 and 66,486.93 is: 99,736.95
Step by Step Solution
- Step 1: Write the proportion equation
192,863.31 : 289,313.99 = 66,486.93 : x - Step 2: Convert to fraction form
192,863.31/289,313.99 = 66,486.93/x - Step 3: Cross multiply
192,863.31x = 289,313.99 × 66,486.93 - Step 4: Simplify right side
192,863.31x = 19,235,598,668.72 - Step 5: Solve for x
x = 19,235,598,668.72/192,863.31 - Step 6: Final answer
x = 99,736.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.